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Cheap flights from Sofia to Istanbul Airport from £61

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/11. Fares are subject to change and may not be available on all flights or dates of travel.
SOF — IST
12 Oct — 19 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Sofia to Istanbul

Discover tips and strategies to find the most affordable flight options for your journey from Sofia (SOF) to Istanbul (IST). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 12 September 2025.

Round-trip from

£98

One-way from

£61

Popular in

November

Cheapest in

March

Average price

£108

Good round-trip deal

£529 or less

Good one-way deal

£200 or less
Turkish Airlines
  • Turkish Airlines
  • 12/12-16/12
  • Nonstop
  • 2h 50m total
  • Sofia to Istanbul
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Turkish Airlines
  • Turkish Airlines
  • 17/11
  • Nonstop
  • 1h 30m total
  • Sofia to Istanbul
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£17 potential increase over avg. return price).
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Cheapest flight prices on average. 7% potential price decrease (£6 potential savings vs. average return price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Sofia to Istanbul.
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Price to beat on a one-way flight from Sofia to Istanbul.
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Find flight deals from Sofia to Istanbul

Cheapest flights from Sofia to Istanbul
Explore the most affordable flight options available from Sofia to Istanbul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 September 2025.

Fri 12/1216:00SOF - IST
Nonstop1h 30mTurkish Airlines
Tue 16/1220:30IST - SOF
Nonstop1h 20mTurkish Airlines
Deal found 12/9£98
Thu 16/1015:35SOF - IST
Nonstop1h 35mTurkish Airlines
Fri 24/1019:00IST - SOF
Nonstop1h 25mTurkish Airlines
Deal found 10/9£106
Mon 27/1016:00SOF - IST
Nonstop1h 30mTurkish Airlines
Mon 3/1114:50IST - SOF
Nonstop1h 20mTurkish Airlines
Deal found 12/9£107
Thu 16/1013:30SOF - IST
1 stop8h 25mMultiple Airlines
Fri 24/1019:00IST - SOF
Nonstop1h 25mMultiple Airlines
Deal found 10/9£126
Mon 27/1016:20SOF - IST
1 stop3h 40mAegean Airlines
Mon 3/1122:00IST - SOF
1 stop22h 30mAegean Airlines
Deal found 12/9£146
Thu 25/905:00SOF - IST
1 stop22h 30mAir Serbia
Mon 29/904:20IST - SOF
1 stop11h 15mAir Serbia
Deal found 11/9£151
Thu 9/1016:05SOF - IST
1 stop11h 25mAir Serbia
Mon 13/1016:35IST - SOF
1 stop23h 00mAir Serbia
Deal found 12/9£151
Thu 27/1120:20SOF - IST
1 stop13h 15mAegean Airlines
Sun 30/1106:30IST - SOF
1 stop14h 00mAegean Airlines
Deal found 11/9£168
Fri 12/1220:20SOF - IST
1 stop5h 50mAegean Airlines
Tue 16/1206:30IST - SOF
1 stop14h 00mAegean Airlines
Deal found 10/9£168
Thu 2/1016:05SOF - IST
1 stop11h 25mAir Serbia
Sun 12/1015:40IST - SOF
1 stop11h 15mAir Serbia
Deal found 11/9£171
Thu 27/1121:40SOF - IST
Nonstop1h 35mTurkish Airlines
Sun 30/1114:50IST - SOF
Nonstop1h 20mTurkish Airlines
Deal found 10/9£173

Cheapflights Fare Finder

 
Customise your flight search to find flights from Sofia to Istanbul that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 12 September 2025.
Use the filters below to find and compare flights from Sofia to Istanbul Airport that are best for you.

Fly from

Sofia

Fly to

Istanbul

Route

Depart

Return

Price

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Fri 12/12

10:05-12:35

Nonstop1h 30m

Istanbul

Tue 16/12

14:50-15:10

Nonstop1h 20m

£98

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Mon 27/10

16:00-18:30

Nonstop1h 30m

Istanbul

Mon 3/11

14:50-15:10

Nonstop1h 20m

£107

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Fri 30/1

16:00-18:30

Nonstop1h 30m

Istanbul

Mon 2/2

14:50-15:10

Nonstop1h 20m

£122

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Mon 27/10

05:00-15:55

1 stop9h 55m

Istanbul

Mon 3/11

14:50-15:10

Nonstop1h 20m

£126

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Thu 16/10

13:30-21:55

1 stop8h 25m

Istanbul

Fri 24/10

19:00-20:25

Nonstop1h 25m

£126

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Thu 25/9

05:00-03:30

1 stop22h 30m

Istanbul

Mon 29/9

04:20-15:35

1 stop11h 15m

£151

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Fri 12/12

16:05-04:25

1 stop11h 20m

Istanbul

Tue 16/12

17:35-15:30

1 stop22h 55m

£151

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Mon 27/10

16:00-16:50

1 stop23h 50m

Istanbul

Mon 3/11

16:40-03:00

1 stop11h 20m

£151

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Thu 9/10

16:05-03:30

1 stop11h 25m

Istanbul

Mon 13/10

16:35-15:35

1 stop23h 00m

£151

SofiaIstanbul

SOF - IST

SOFIST

Sofia

Mon 17/11

10:05-12:35

Nonstop1h 30m

£61

Flights are sorted by cheapest return flights first.

Deals found on 10/9

Showing 1-10 of 21 results
1
2
3

Best time to book a flight from Sofia to Istanbul

Have a flexible travel schedule? Discover the best time to fly to Istanbul from Sofia with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Sofia to Istanbul Airport

How far ahead should I book a flight from Sofia to Istanbul Airport?

Use this chart to determine the optimal time to book a return flight from Sofia to Istanbul. Price data was last updated on 29 August 2025.

Booking 34 days in advance of your planned departure date is, on average, the best time to get cheap flights from Sofia to Istanbul Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Sofia to Istanbul Airport?

Currently, January is the cheapest month in which you can book a flight from Sofia to Istanbul Airport (average of £159). Flying from Sofia to Istanbul Airport in August is currently the most expensive (average of £366). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SOF to IST?

Find hourly flight availability from Sofia to Istanbul. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 12 September 2025.

It’s typically best to fly out from Sofia to Istanbul Airport at midday. Doing so could potentially save you 86% on the flight price compared to flying in the evening, which is usually more expensive.

How much does it cost for a return flight from Sofia to Istanbul Airport?

Reviews of airlines servicing Istanbul

Get insights into the airlines that provide service to Istanbul. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Istanbul. Reviews last updated 12 September 2025.
See what other customers who have flown with Turkish Airlines and Pegasus Airlines from Sofia to Istanbul Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Turkish Airlines
7.3
Good
3,968 reviews
Check prices

Entertainment

7.4

Food

7.4

Overall

7.3

Comfort

7.3

Boarding

7.3

Crew

7.7

Reviews

1 / 20
2.0
Mediocre

Brian,Jul 2025

SEA - IST

Horrible check-in experience in Seattle. Was actually yelled at by a customer service rep and then he intentionally would put us in the back row to make sure our seats would not recline. When I complained to customer service they told me they did not find any issues with how we were treated. The sinks did not drain in the bathroom during the flight and my in-flight entertainment never worked during a 12 hour flight. They said they would reset 3 times but never did. Would never fly them again.
Turkish Airlines
7.3
Good
3,968 reviews
Turkish Airlines
7.3
Good
3,968 reviews
Check prices

Entertainment

7.4

Food

7.4

Overall

7.3

Comfort

7.3

Boarding

7.3

Crew

7.7

Reviews

1 / 20
2.0
Mediocre

Brian,Jul 2025

SEA - IST

Horrible check-in experience in Seattle. Was actually yelled at by a customer service rep and then he intentionally would put us in the back row to make sure our seats would not recline. When I complained to customer service they told me they did not find any issues with how we were treated. The sinks did not drain in the bathroom during the flight and my in-flight entertainment never worked during a 12 hour flight. They said they would reset 3 times but never did. Would never fly them again.
Pegasus Airlines
6.8
Okay
639 reviews
Turkish Airlines
7.3
Good
3,968 reviews
Check prices

Entertainment

7.4

Food

7.4

Overall

7.3

Comfort

7.3

Boarding

7.3

Crew

7.7

Reviews

1 / 20
2.0
Mediocre

Brian,Jul 2025

SEA - IST

Horrible check-in experience in Seattle. Was actually yelled at by a customer service rep and then he intentionally would put us in the back row to make sure our seats would not recline. When I complained to customer service they told me they did not find any issues with how we were treated. The sinks did not drain in the bathroom during the flight and my in-flight entertainment never worked during a 12 hour flight. They said they would reset 3 times but never did. Would never fly them again.

Related info for your journey

Find useful and relevant information for your journey from Sofia to Istanbul. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Sofia to Istanbul?

    Sofia (SOF) is the airport you will fly out of if you book a flight from Sofia to Istanbul. You should not have trouble finding flights to Istanbul from Sofia; the airport handles an average of 4 outbound flights to Istanbul per day. You should also have plenty of airline options to choose from since 2 airlines have flights from the Sofia airport to Istanbul. It is only a 4.2 mi journey to Sofia (SOF) from Sofia’s city center.

  • How long is the flight from Sofia to Istanbul Airport?

    Turkish Airlines can get you from Sofia to Istanbul Airport in just under 1h 30m. Your travel time will be generally consistent. The distance between Sofia and Istanbul Airport is about 291 mi. Most flights are nonstop.

  • What are the cheapest airlines flying from Sofia to Istanbul Airport round-trip?

    Currently priced at £70, Pegasus Airlines will fly you from Sofia to Istanbul Airport and back. In addition to Pegasus Airlines, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Turkish Airlines for as low as £103. You may be able to fly from Sofia to Istanbul Airport for 33% less than the average price by searching for these airlines.

  • What are the most reliable airlines from Sofia to Istanbul Airport?

    The top 3 most reliable airlines when flying from Sofia to Istanbul Airport are Egyptair (85%), Royal Jordanian (85%) and Singapore Airlines (85%).

  • What are the cheapest flights from Sofia to Istanbul Airport?

    The cheapest flight price from Sofia to Istanbul Airport is £143. On average you can expect to pay £466. The most popular route, (Sofia - Istanbul), can usually be booked for £155.

  • Can I find deals for flights from Sofia to Istanbul that include hotel bookings?

    Yes. In addition to deals on Sofia to Istanbul flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Sofia to Istanbul?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sofia to Istanbul.

  • Can I find deals for business class flights from Sofia to Istanbul?

    Yes. Cheapflights offers flight deals from Sofia to Istanbul by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Sofia to Istanbul Airport?

    Currently, January is the cheapest month in which you can book a flight from Sofia to Istanbul Airport (average of £159). Flying from Sofia to Istanbul Airport in August is currently the most expensive (average of £366). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Istanbul Airport?

Book flights to Istanbul Airport if you plan to visit one of these locations
Yalova

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Top 2 airlines flying from Sofia to Istanbul

Discover the top 2 airlines that operate flights from Sofia to Istanbul. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 12 September 2025.
AirlineCheapestAverageFlexibilityOn-time
Pegasus AirlinesCheapest£70Average£72FlexibilityNo cancel feeOn-time82%
Search Pegasus Airlines flights
Turkish AirlinesCheapest£103Average£163FlexibilityNo cancel feeOn-time77%
Search Turkish Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Sofia to Istanbul?

Cheapflights makes it easy to find Sofia to Istanbul flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Sofia to Istanbul?

Cheapflights simply makes it quick and affordable to book flights from Sofia to Istanbul by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Sofia to Istanbul with no change fees?

Yes, we can. To see specific flights from Sofia to Istanbul with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Sofia to Istanbul become cheaper?

Yes, Cheapflights offers price alerts on Sofia to Istanbul flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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